R4332 View Datasheet(PDF) - Hamamatsu Photonics
Part Name
Description
View to exact match
R4332 Datasheet PDF : 4 Pages
| |||
I: The electron transit time is the interval between the arrival of delta function
light pulse at the entrance window of the tube and the time when the anode
output reaches the peak amplitude. In measurement, the whole photo-
cathode is illuminated.
J: Also called transit time jitter. This is the fluctuation in electron transit time
between individual pulses in the signal photoelectron mode, and may be
defined as the FWHM of the frequency distribution of electron transit times.
K: Hysteresis is temporary instability in anode current after light and voltage
are applied.
li
l max.
l min.
TIME
0
5
6
7 (minutes)
TPMSB0002EA
Figure 2: Anode Luminous Sensitivity and
Gain Characteristics
TPMSB0032EB
105
108
GAIN(TYP.)
104
107
103
106
Hysteresis =
lmax lmin.
li
100(%)
(1)Current Hysteresis
The tube is operated at 750 volts with an anode current of 1 micro-ampere for
5 minutes. The light is then removed from the tube for a minute. The tube is
then re-illuminated by the previous light level for a minute to measure the
variation.
(2)Voltage Hysteresis
The tube is operated at 300 volts with an anode current of 0.1 micro-ampere
for 5 minutes. The light is then removed from the tube and the supply voltage
is quickly increased to 800 volts. After a minute, the supply voltage is then
reduced to the previous value and the tube is re-illuminated for a minute to
measure the variation.
Figure 3: Typical Time Response
TPMSB0004EB
100
80
60
40
20
TRANSIT TIME
102
105
ANOD LUMINOUS
SENSITIVITY (TYP.)
101
104
ANODE LUMINOUS
SENSITIVITY (MIN.)
100
103
10
8
6
4
RISE TIME
2
10–1
500
600 700 800
1000 1200
102
1500
SUPPLY VOLTAGE (V)
Figure 4: Typical ENI with Wavelength
TPMSB0082EA
10-12
1
300
500
700
1000
SUPPLY VOLTAGE (V)
1500
Figure 5: Typical EADCI (Equivalent Anode Dark Current Input)
vs. Supply Voltage
TPMSB0034EA
10–9
10-13
10-14
10-15
R4332
R3788
10-16
100 200 300 400 500 600 700 800
WAVELENGTH (nm)
10–10
10–11
10–12
10–13
300
400 500 600
800 1000
SUPPLY VOLTAGE (V)
1500
Share Link: 